Ginseng saponin F1Preparation and antitumor action thereof
Technical field
The separation and purification and the antitumor action thereof that the present invention relates to a kind of natural product active ingredient, be specifically related to ginseng soapGlycosides F1Separation and purification new method and the effect to lung cancer, cancer of the stomach and breast cancer, belong to field of medicaments.
Background technology
In recent years, global cases of cancer was rapid growth situation, was the master that human health and life are constituted a serious threatWant one of sick kind. In China, cancer morbidity front three is lung cancer, breast cancer, cancer of the stomach, and death rate front three is lungCancer, liver cancer, cancer of the stomach, and the rising of women's cancer morbidity is obviously, particularly breast cancer. So, active and effectivePrevention and treatment cancer are still difficult medical problem urgently to be resolved hurrily.
Ginseng (PanaxginsengC.A.Mey.) is Araliaceae (Araliaceae) Panax (Panax) plant, is to originate in meThe rare medicinal herbs simply of the Northeast of state. Ginsenoside is the main active of ginseng, has demonstrated a series of biologiesActivity, as antitumor, anti-inflammatory and anti-ageing waiting for a long time. In root, cauline leaf, flower and the fruit of ginseng, all contain ginsenoside,But the kind of ginsenoside is different with content in each position, separate up to now the monomer of qualification from the each position of ginsengExisting more than 200 of ginsenoside. Ginseng saponin F1Ginsenoside Rg1And Panax Notoginseng saponin R1Intestines in bacterium metabolism produceThing, in crude drug, content is lower, only separates to such an extent that be folium panacis japonici cum caule and in spending at present. Ginsenoside mainly passes throughThe approach performances such as cell death inducing, inhibition Angiogenesis, interference or cell cycle regulation, the inflammation-inhibiting factor are anti-swollenKnurl effect, different monomer saponin mechanism of action differences, so in order to reach the maximum order that also can directly bring into play its effectMark, is necessary to extract ginsenoside monomer preparation from ginseng. At present, ginsenoside monomer compound formulation is alsoIt is developed to the development trend of medicine, as ginsenoside Rg3、Rh2, the existing list marketing kind such as C-K.
Ginseng aerial part is very important precious resources, and wherein flower of Panax ginseng is the ginseng flower that a bud just ready to burst, flower of Panax ginsengIn total saponin content the highest (approximately 5~7%), the content of partial monosomy saponin(e exceedes in ginseng ten times (as ginseng soapGlycosides Re). Research discovery, the pharmacologically active of ginseng aerial part saponin constituent is similar to Radix Ginseng total saponins, because of this personGinseng aerial part especially flower of Panax ginseng has good drug development and utilizes prospect.
Learn through consulting patent documentation, so far with ginseng saponin F1The patent that preparation technology is relevant discloses as described below.
The level and smooth mould of CN101012473A-or myrothecium verrucaria and prepare ginseng saponin F with it1Method. This is sent outBright is that one utilizes bioconversion method to obtain ginseng saponin F1Preparation technology. By panaxatriol saponins or ginseng soapGlycosides Rg1, by with have hydrolysis ginsenoside the level and smooth mould of bacterial strain or myrothecium verrucaria effect, shake at automatic rotationOn bottle machine, shake, 220-240rpm, cultivates 72-96 hour, obtains converted product for 27-28 DEG C. By converted product fromThe heart is concentrated, adopts benzinum, chloroform, n-butanol mixed solvent extraction, and n-butanol part is CE, then through siliconGlue column chromatography, with chloroform-methanol gradient elution thin-layer chromatography tracking ginseng saponin F1Component, carries out purifying, enters oneStep, through recrystallization, obtains high-purity product. The present invention is applicable to large-scale industrial production, and cost of material is low.
The method of a CN1869055A-separation and purification ginsenoside monomer from folium panacis japonici cum caule. This invention disclose fromIn folium panacis japonici cum caule, extract and separate ginsenoside Rb1, ginsenoside Rb2, ginsenoside Rb3, Ginsenoside Rc, ginsengSaponin(e Rd, ginseng saponin F2, N-Fe, ginsenoside Re, ginsenoside Rg1, ginsenoside Rg2、Ginseng saponin F1, especially ginseng saponin F1, ginseng saponin F2, N-Fe method. Utilize macroporous absorptionResin is divided into the ginsenoside in folium panacis japonici cum caule mainly by ginsenoside Re and ginsenoside Rg1The mixing saponin A of compositionMainly by ginseng saponin F1, ginsenoside Rg2, ginseng saponin F2, N-Fe, ginsenoside Rd, peopleGinseng saponin(e Rb2, Ginsenoside Rc, ginsenoside Rb1With ginsenoside Rb3The mixing saponin(e B of composition, then usesThe method of recrystallization or alumina column chromatography obtains the more simple panaxsaponin mixture of composition, finally passes through column chromatographyMethod obtain ginsenoside monomer. The various ginsenoside monomers that obtain can be used for pharmaceutical compositions, health care foodProduct and other products.
A CN1869052A-extraction separation panaxsaponin mixture's from folium panacis japonici cum caule method. This invention disclosesFrom folium panacis japonici cum caule, extract to separate and contain ginseng saponin F1, ginseng saponin F2, N-Fe panaxsaponin mixtureMethod. By folium panacis japonici cum caule's boiling, merge decoction liquor, cross macroporous absorbent resin absorption, water washes down, 85% ethanolWash-out obtains the total saponin(e of folium panacis japonici cum caule. Upper alumina column after total folium panacis japonici cum caule saponin(e water is dissolved, first washes eluent with waterCross macroporous absorbent resin absorption, ethanol desorb, reclaims solvent, obtains mainly containing GF1, ginsenoside Rg2、Ginsenoside Rg1Panaxsaponin mixture with ginsenoside Re. The panaxsaponin mixture who obtains can be used for preparing medicineCompositions, health food and ginsenoside monomer.
A CN1869056A-extraction separation panaxsaponin mixture's from folium panacis japonici cum caule method. This invention disclosesFrom folium panacis japonici cum caule, extract to separate and contain ginseng saponin F1, ginseng saponin F2, N-Fe panaxsaponin mixtureMethod. By folium panacis japonici cum caule's boiling, merge decoction liquor, cross macroporous absorbent resin absorption, water washes down, 18% ethanolBe eluted to eluent and can't detect ginsenoside Re and ginsenoside Rg1After use 85% ethanol elution to eluent instead and examineDo not detect ginsenoside Rd and ginsenoside Rb1Till. 85% ethanol eluate directly reclaims ethanol, obtains and contains peopleGinseng saponin(e Rb1, ginsenoside Rb2, ginsenoside Rb3, Ginsenoside Rc, ginsenoside Rd, ginseng saponin F1、Ginseng saponin F2Panaxsaponin mixture with N-Fe.
Above-mentioned about ginseng saponin F1The method that the patented technology of separation preparation is removed bio-transformation can obtain monomer chemical combinationBeyond thing, all the other separate the method for preparation all to contain ginseng saponin F1Mixture be main, purity is lower, and notSee and have about prepare purified ginsenoside F from natural plants1The method report of monomer.
Summary of the invention
The invention provides a kind of ginseng saponin F1The method for preparing purified of monomer, is applicable to suitability for industrialized production. The present inventionThat separation and purification goes out monomer ginseng saponin F from flower of Panax ginseng methanolic extract1. Due to monomer ginsenoside antitumor actionMechanism is different, for maximum and directly bring into play its effect, be necessary to extract ginsenoside monomer and enter from ginsengAnd develop preparation. At present, prepare the Main Trends of The Development that monomeric compound preparation is ginseng and correlated product thereof.
The present invention is achieved through the following technical solutions, ginseng saponin F1Preparation method comprises:
(1) preparation of ginseng flower total saponine
Get the flower of Panax ginseng of fresh dried, pulverize, with methyl alcohol extraction, merging filtrate, concentrated, obtain methanolic extract.Successively with cyclohexane, ethyl acetate extraction, till obviously shoaling to extract color. Combined ethyl acetate extract,Concentrated, obtain containing ginseng saponin F1Ginseng flower total saponine.
(2) preparation of sample glue
Ginseng flower total saponine is dissolved with methyl alcohol, add total saponin(e quality 2-4 80~100 order silica gel doubly, water-bath is steamedDo to Powdered, become silica gel column chromatography sample glue.
(3) preparation of separation gel
Get ginseng flower total saponine quality 15-25 300~400 order silica gel doubly, fully dissolve with chloroform, ultrasonic 20min,Stir, bubble removing makes silica gel separation gel.
(4) wash-out
Adopt silica gel column chromatography, separation gel is evenly added in glass column, then sample glue is slowly evenly added to separation gelSilica gel column chromatography is carried out on upper strata, respectively taking chloroform: methyl alcohol: the volume ratio of water is 100:10:1, and 80:10:1,60:10:1,40:10:1, the mixed liquor of 20:10:1 and 10:10:1, as eluent, carries out gradient elution successively, collects respectively wash-outWhen stream part, adopt thin-layered chromatography to detect, collection, merging and ginseng saponin F1Positive reference substance Rf value is identicalStream part solution, be spin-dried for and preserve with Rotary Evaporators.
Ginseng saponin F described in the present invention1Positive reference substance can be obtained by public commercial sources.
(5) ginseng saponin F1Purifying
The ginseng saponin F that step (4) is spin-dried for1Sample, for subsequent use as sample after dissolving with 50% methanol aqueous solution; TakeThe MCIGEL that total saponin(e quality is 30 times is as separation gel, and 50% methanol solution fills post; First add two column volumes50% methanol aqueous solution balance pillar, then add sample for subsequent use along column wall with dropper; Use successively 50% methyl alcohol,60% methyl alcohol, 70% methyl alcohol mixed liquor carries out gradient elution, adopts thin-layered chromatography to detect, collection, merging and ginsengSaponin(e F1Positive reference substance Rf value phase homogeneous turbulence part solution, is spin-dried for and preserves with Rotary Evaporators.
Concrete, in preparation method mentioned above, the step that thin-layered chromatography detects comprises: utilize thin-layer chromatographyPlate Silicagel602F254, the chloroform-methanol-water mixed solvent using volume ratio as 6:1:0.1 is as solvent, with 5%The colour developing of sulfuric acid-ethanolic solution.
Further, in technique scheme, the time of the described ultrasonic bubble removing of step (2) is 20min.
Further, in technique scheme, the bath temperature of Rotary Evaporators is 40-50 DEG C.
Further, in technique scheme, in total saponin(e, contain ginseng saponin F1The about 10-15% of monomer.
The present invention further provides ginseng saponin F1Monomer is in the effect of anti-tumor aspect, especially to people's lung cancer, peopleThe In-vitro Inhibitory Effect of cancer of the stomach and human breast cancer cell, is better than ginseng sapoglycoside Rg 3.
The present invention further provides ginseng saponin F1Monomer is in the application of preparing in antineoplastic.
Further, in technique scheme, described tumour comprises human lung cancer, people's stomach neoplasm and HBT.
Invention beneficial effect
1, the selected raw material flower of Panax ginseng methanolic extract of the present invention derives from the flower of pure natural plant ginseng, therefrom separatesA kind of active ingredient-ginseng saponin F of antitumor action1, its content in flower of Panax ginseng reaches approximately 1.02%, possessesWithout chemical synthetic drug, have no side effect, can not produce drug-dependent feature, thereby safe and reliable.
2, technique easy operating of the present invention, yield is high, and purity is high, does not introduce noxious material, has no side effect and medicineThing dependence, and highly purified ginseng saponin F1Monomer, can be better, is more widely used in antineoplasticIn thing.
Brief description of the drawings
Fig. 1 is high performance liquid chromatography (HPLC) figure of ginseng cycle of sixty years alcohol extract Ethyl acetate fraction.
Fig. 2 is the ginseng saponin F that purifying obtains from flower of Panax ginseng1High performance liquid chromatography (HPLC) figure of monomer.
Fig. 3 is ginseng saponin F1Proton nmr spectra (1HNMR) figure.
Fig. 4 is ginseng saponin F1Carbon-13 nmr spectra (13CNMR) figure.
Fig. 5 is ginseng saponin F1Mass spectrum (MS) figure.
Fig. 6 is ginseng saponin F1On the impact of three-type-person's tumour cell survival rate.
Detailed description of the invention
Following non-limiting example can make the present invention of those of ordinary skill in the art's comprehend, but not withAny mode limits the present invention. Agents useful for same in following embodiment, if no special instructions, is commercial sources and obtains;Test method used in following embodiment, if no special instructions, is normal experiment side well known to those skilled in the artMethod.
In the present invention, to ginseng saponin F1Sample carries out purity detecting and structural analysis, and its condition is as follows:
Purity detecting, is by HPLC area normalization method, it to be detected, chromatographic condition: chromatographic column, ZorbaxEclipseXDBC-18 (5 μ m; 4.6mmi.d. × 250mm); Mobile phase, the methanol-water that volume ratio is 60:40;Flow velocity, 1.0mL/min; Detect wavelength, 203nm; Sample size, 20 μ L.
Structural analysis, select OrbitrapElite mass spectrograph (ThermoScientific, Bremen, Germany) and(TMS marks in doing BrukerDRX-500 type NMR, C5D5N makes solvent), it has been carried out to structural characterization,Obtain ginseng saponin F1MS and NMR data.
We utilize silica gel column chromatography and MCIGEL column chromatography, have obtained highly purified ginseng from flower of Panax ginsengSaponin(e F1, by pharmacodynamic experiment, the anticancer test of 3 kinds of human tumor cells is proved to have stronger antitumor activity.The ginseng saponin F that this preparation method obtains1Monomer purity is high, and steady quality can be used for antineoplastic exploitation or medicineThe preparation of composition.
Embodiment 1
The object of the present invention is to provide a kind of the effective of a kind of antitumor action that prepare from flower of Panax ginseng methanolic extractComposition-ginseng saponin F1Method for extraction and purification. Concrete steps are as follows:
(1) preparation of ginseng flower total saponine
Get the flower of Panax ginseng 4.02kg of fresh dried, pulverize, add 16L methanol solution heating and refluxing extraction, each 2h,Extract altogether 3 times, merge extract, decompression and solvent recovery, to dry, obtains methanolic extract 1130g. By methanolic extractAdd 500mL water, dispersing and dissolving, is extracted to solution colour and obviously shoals with cyclohexane, ethyl acetate successively, by secondAcetoacetic ester extract recovered under reduced pressure is concentrated, obtains Ethyl acetate fraction 355g. This is containing ginseng saponin F1PeopleGinseng flower total saponine (Fig. 1), yield approximately 8.8%.
(2) prepare sample glue
Accurately take ginseng flower total saponine 5.242g obtained above, dissolve completely with 30mL methyl alcohol, then add 11.061G80~100 order silica gel (consumption is about 2 times of total saponin(e quality) at the water bath method of 50 DEG C, constantly stirs simultaneously,Do not make caking, until silica gel presents the dry pulverulence of not staying hand, be placed in drying basin dry, make it to become sampleGlue.
(3) prepare separation gel
Take 101.368g300~400 order silica gel (consumption is about 20 times of total saponin(e quality), use 250mL chloroformFully dissolve, ultrasonic bubble removing 20min constantly stirs simultaneously, until without a large amount of Bubble formations.
(4) wash-out
Adopt silica gel column chromatography, separation gel is evenly added in glass column, then sample glue is slowly evenly added to separation gelSilica gel column chromatography is carried out on upper strata, respectively taking chloroform: methyl alcohol: the volume ratio of water is 100:10:1, and 80:10:1,60:10:1,40:10:1, the mixed liquor of 20:10:1 and 10:10:1, as eluent, carries out gradient elution successively, collects respectively wash-outStream part.
(5) thin-layer chromatography (TLC) detects
Thin layer chromatography board is selected thin layer chromatography board Silicagel602F254, German Merck company goods, solvent is selectedChloroform-methanol-water (volume ratio is 7:1:0.1), developer is selected 5%H2SO4-ethanolic solution. Merge and ginseng saponin F1Reference substance (ginseng saponin F1Reference substance, NIFDC provides) Rf value phase homogeneous turbulence part solution, at 60:10:1 wash-out stream partIn, ginseng saponin F1Eluted, then use Rotary Evaporators water-bath (temperature is 50 DEG C) to be spin-dried for, obtained crude product ginsenosideF1Quality is 0.726g, puts into drier and preserves.
(6) column chromatography purification ginseng saponin F1
Step (5) is separated to the ginseng saponin F obtaining1Crude product 0.726g, dissolves completely with 2mL50% methanol aqueous solution., as separation gel, consumption is about to take 20.556gMCIGEL (F type 75-150u, biological Co., Ltd is composed by Chengdu section)30 times of sample quality, 50% methyl alcohol dress post. First use 2 column volumes of 50% methanol-eluted fractions with balance pillar, then useDropper is along column wall application of sample. Use successively 50% methyl alcohol, 60% methyl alcohol, 70% methyl alcohol mixed liquor carries out gradient elution,Employing thin-layered chromatography detects, and finds that there was ginseng saponin F 60% meoh eluate second half section1Wash-out out, is collected, is closedAnd and ginseng saponin F1Positive reference substance Rf value phase homogeneous turbulence part solution, with Rotary Evaporators (bath temperature is 50 DEG C)Be spin-dried for, obtain ginseng saponin F10.589g. Obtain the total recovery of monomer saponin from ginseng flower total saponine to separation and purification approximately11.2%。
Embodiment 2
(1) purity detecting
Adopt high performance liquid chromatography (HPLC) method to the ginseng saponin F obtaining through column chromatography purification1Detect, it is pureDegree is 95.17% (Fig. 2). Chromatographic condition: chromatographic column, ZorbaxEclipseXDBC-18 (5 μ m; 4.6mmi.d. × 250Mm); Mobile phase, methyl alcohol: water volume ratio is 60:40; Flow velocity, 1.0mL/min; Detect wavelength, 203nm; Sample introductionAmount, 20 μ L. Under this chromatographic condition, ginseng saponin F1Calibration curve regression equation is y=2.428x-21.466, R=0.9999; Sample size has good linear relationship within the scope of 0.3 μ g~20 μ g.
(2) ginseng saponin F1Structural analysis
Adopt high resolution mass spectrometry and nuclear magnetic resonance spectroscopy, the product after purified has been carried out to structural characterization, obtainGinseng saponin F1MS and NMR Spectral Characteristic. The instrument of selecting is OrbitrapElite mass spectrograph (ThermoScientific, Bremen, Germany) and BrukerDRX-500 type NMR (mark in TMS work, C5D5N doesSolvent), interpretation is as follows.
High resolution mass spectrum figure interpretation of result:
Ginseng saponin F1High resolution mass spectrum as shown in Figure 5. M/z661.4279[M+Na in collection of illustrative plates]+(calculated value661.4291;C36H62O9Na), illustrate that its molecular formula is C36H62O9, be consistent with result.
Nuclear magnetic resonance spectroscopy interpretation of result:
Ginseng saponin F1For white amorphous powder, 5% sulfuric acid ethanol colour developing spot is purple; Liberman-BurchardReacting positive.
At ginseng saponin F1's1HNMR(C5D5N) (Fig. 3) and13CNMR(C5D5N) (Fig. 4) in spectrum, can see:1HNMR(400MHz,C5D5N)δ1.00,1.04,1.12,1.47,1.62,1.62,1.64,2.00(each3H,s,CH3), fragrant district δ 5.26 (1H, t, J=6.1Hz, H-24) is the characteristic signal on the two keys of H-24. In addition δ 5.20 (1H,D, J=6.4Hz) be the terminal hydrogen signal of glucosyl group.13CNMR(100MHz,C5D5N) in spectrum, provide altogether 36 carbonSignal, wherein 30 carbon signals are aglycon, through contrasting with document, are 20 (S)-Protopanaxatriols. All the other 6 signalsFor glucosyl group signal: δ 98.28,78.51,78.25,75.16,71.78,62.99.13CNMR(100MHz,C5D5N)Data see the following form.
Through above-mentioned detection digital proof, the sample that the present invention obtains is ginseng saponin F1, its molecular structure is (I)It is the ginseng saponin F of indication in the present invention1Chemical constitution;
The present invention further illustrates its antitumor action by pharmacodynamic experiment below.
Embodiment 3
MTT (tetrazolium salts) method is measured ginseng saponin F1To the lethal effect of human tumor cells.
(1) experimental design
The tumor cell line using: A549 Non-small cell lung carcinoma cell, MGC80-3 gastric carcinoma cells, MCF-7(cell culture fluid of employing is respectively RPMI1640 nutrient solution, DMEM to human breast cancer cell three-type-person tumor cell lineNutrient solution, MEM nutrient solution).
Test grouping:
Ginseng saponin F1Group: 1,25,50,100,200 μ g/L;
Ginsenoside Rg3Group: 1,25,50,100,200 μ g/L;
Blank group: cell culture fluid;
Solvent control group: cell culture fluid and DMSO;
Positive controls: 5 FU 5 fluorouracil (10 μ g/L)
(2) method
The cell in growth period of taking the logarithm, adds 0.25% Trypsin Induced, and the centrifugal 10min of 600r/min adjusts cellConcentration is 6 × 104Individual/mL, is inoculated in (the aseptic PBS of edge hole fills) in 96 well culture plates every hole 90 μ L.Cultivate after 24h, add sample ginseng saponin F1(sample dissolution in DMSO, progressively dilute with culture medium, addThe DMSO final concentration of cell herb liquid is lower than 1%), make cell liquid final concentration reach 1,25,50,100,200 μ g/L,All establish 3 parallel holes for every group. In 37 DEG C of 5%CO2Incubator co-incubation 48h. Every hole adds 20 μ LMTT moltenLiquid (5mg/mL is dissolved in PBS), continues to cultivate after 4h, stops cultivating. Careful suction abandoned supernatant, and every hole addsEnter 150 μ LDMSO, concussion 10min, fully dissolves crystal. Survey every hole at 570nm place with ELIASALight absorption value (A), calculates cell survival rate: cell survival rate %=adds sample A value/control cells A value × 100%.
(3) result
Experimental result shows, ginseng saponin F1Three-type-person's tumor cell line is all had to stronger killing functions of immunocytes. KnotFruit sees Fig. 6. Compared with ginseng sapoglycoside Rg 3, effect obviously strengthens. The results are shown in Table 1-3.
The impact of table 1 on A549 Non-small cell lung carcinoma cell
The impact of table 2 on MGC80-3 gastric carcinoma cells
The impact of table 3 on MCF-7 human breast cancer cell
In sum, at present, we find ginseng saponin F1Monomer is that a kind of tool that in flower of Panax ginseng, content is higher is antitumorActive saponin constituent, along with the development trend of monomeric compound preparation, it has wide in antineoplastic research and developmentProspect. The present invention separates from total saponin(e of flower of Panax ginseng methanolic extract, is purified into monomer ginseng saponin F1. ThisBright technique easy operating, yield is high, and purity is high, is difficult for introducing noxious material, have no side effect and drug dependence,Ginseng saponin F1Monomer can be widely used in antineoplastic or pharmaceutical composition.